I read it the same way. The primary case for Jones seems to be that he's produced big against elite SEC competition, therefore his lack of notable athleticism shouldn't be a concern. I think the OP did a pretty good job of undercutting that point with some interesting historical stats.
Now maybe there's some "Saintaholic fatigue" at play in this thread, but I've seen far worse OP's. At the very least, he's presented some food for thought.
Quite frankly, Jones at 15 makes me nervous as hell. Then again, so does just about every other likelihood barring Lotulelei, Lane Johnson, and maybe Sheldon Richardson. Therefore I go into tonight's draft feeling both thrilled and terrified.
It's a pretty fun position to be in.